Note - Blast analyses are based on comparisons of the phosphosites and the bordering four amino acids on each side of these phosphosites.

Phosphosite
Human Protein:	ARPP-21
Human P-Site:	S369
P-Site Sequence:	WSSTDSDSSNRNLKP
UniProt:	Q9UBL0
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ARPP-21	Q9UBL0	S369	WSSTDSDSSNRNLKP	100 / 9 AA	89
Phosphosite 1:	ARPP-21	Q9UBL0	S370	SSTDSDSSNRNLKPA	100 / 8 AA	89
Phosphosite 2:	R3HDM1	Q15032	S367	WSSTDSDSSLRNLKP	88 / 9 AA	121
Phosphosite 3:	DSPP	Q9NZW4	S855	SDGSDSDSSNRSDSS	87 / 8 AA	126
Phosphosite 4:	DSPP	Q9NZW4	S856	DGSDSDSSNRSDSSN	100 / 7 AA	126
Phosphosite 5:	R3HDM1	Q15032	S368	SSTDSDSSLRNLKPA	87 / 8 AA	121
Phosphosite 6:	ARPP-21	Q9UBL0	S367	RAWSSTDSDSSNRNL	100 / 7 AA	89
Phosphosite 7:	ARHGEF2	Q92974	S721	LCRADSDSSQRDRNG	66 / 9 AA	112
Phosphosite 8:	RIP140	P48552	S838	LADDSDRSHRNNEMA	75 / 8 AA	127
Phosphosite 9:	PHF20L1	A8MW92	S495	TAPVASDSSYRNECP	66 / 9 AA	62
Phosphosite 10:	ARHGEF2	Q92974	S722	CRADSDSSQRDRNGN	75 / 8 AA	112
Phosphosite 11:	PHF20L1	A8MW92	S496	APVASDSSYRNECPR	85 / 7 AA	62
Phosphosite 12:	PHF20L1	A8MW92	Y497	PVASDSSYRNECPRA	85 / 7 AA	62
Phosphosite 13:	PDIA4	P13667	S31	AEGPDEDSSNRENAI	85 / 7 AA	73
Phosphosite 14:	SASH1	O94885	T533	VSTTDSSTSNRESVK	75 / 8 AA	137
Phosphosite 15:	PDIA4	P13667	S32	EGPDEDSSNRENAIE	85 / 7 AA	73
Phosphosite 16:	PKN1	Q16512	S561	NLGTDSDSSPQKSSR	66 / 9 AA	104
Phosphosite 17:	C14orf104	Q9NVR5	S710	TPTTDSDSSIAVKAL	100 / 6 AA	91
Phosphosite 18:	DMXL2	Q8TDJ6	S1287	FGDTEADSSNAEEAA	71 / 7 AA	340
Phosphosite 19:	PKN1	Q16512	S559	KLNLGTDSDSSPQKS	100 / 6 AA	104
Phosphosite 20:	PTPN12	Q05209	S608	LHSDDSDSDERNSDG	75 / 8 AA	88